The highest power factor is unity, 1.0...? A typical drum welder can operate at a power factor as low as 0.2.
最大功率因数？是整数，1.0……一典型的桶焊机操作的功率因数可达到0.2这样低。
Goji berries have one of the highest ORAC ratings - a method of gauging antioxidant power - of any fruit. The sugars that make goji berries sweet reduce insulin resistance - a risk factor of diabetes.
枸杞被列为抗氧化能力指数(ORAC)最高的浆果之一，此外，它所含糖分还可有效降低患糖尿病的风险。
Goji berries have one of the highest ORAC ratings - a method of gauging antioxidant power - of any fruit. The sugars that make goji berries sweet reduce insulin resistance - a risk factor of diabetes.
枸杞被列为抗氧化能力指数(ORAC)最高的浆果之一，此外，它所含糖分还可有效降低患糖尿病的风险。
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